benzyl(3,5-bis(trifluoromethyl)phenyl)selane | 714287-70-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: benzyl(3,5-bis(trifluoromethyl)phenyl)selane
• 英文别名: benzyl(3,5-bis(trifluoromethyl)phenyl)selenide；1-Benzylselanyl-3,5-bis(trifluoromethyl)benzene；1-benzylselanyl-3,5-bis(trifluoromethyl)benzene
• CAS: 714287-70-4
• 化学式: C₁₅H₁₀F₆Se
• 分子量: 383.195
• InChiKey: RBHSOMZIXQZJFT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.25
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  benzyl(3,5-bis(trifluoromethyl)phenyl)selane 在 N-氯代丁二酰亚胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 0.5h， 以64%的产率得到benzyl(3,5-bis(trifluoromethyl)phenyl)selenoxide
  参考文献：
  名称：

  GPx-Like Activity of Selenides and Selenoxides: Experimental Evidence for the Involvement of Hydroxy Perhydroxy Selenane as the Active Species

  摘要：

  The reaction mechanism of the GPx-like oxidation of PhSH with H2O2 catalyzed by selenoxides proceeds via formation of the hydroxy perhydroxy selenane, which is a stronger oxidizing agent than selenoxide. A hydroxy perhydroxy selenane intermediate was observed by electrospray ionization mass spectrometry and Se-77 NMR spectroscopy in reactions of selenoxide 8 with H2O2. The initial velocity of oxidation of PhSH by H2O2 with selenoxide 8 is 4 orders of magnitude higher than that of 8 without peroxide. Selenoxide 8 is not reduced to selenide 6 by PhSH in the presence of H2O2. While electronic substituent effects have minimal impact on the catalytic performance of selenoxides, chelating groups increase the rate of catalysis.

  DOI：

  10.1021/ja209570y
• 作为产物：
  描述：

  3,5-双(三氟甲基)碘苯 在 selenium 、 copper(II) oxide 、 caesium carbonate 、 乙腈 、 potassium hydroxide 作用下， 以 二甲基亚砜 为溶剂， 反应 12.0h， 生成 benzyl(3,5-bis(trifluoromethyl)phenyl)selane
  参考文献：
  名称：

  苄基三甲基铵盐与二（杂）芳基二硫化物和二硒化物的无过渡金属偶联反应

  摘要：

  开发了一种新的方案，以从（手性）苄基三甲基铵盐和二（杂）芳基二硫化物或二硒化物合成（对映体富集）硫醚和硒醚。弱碱的存在促进了这些合成，并且不需要使用任何过渡金属，从而使目标产物的收率达到了良好或优异（72-94％）。使用由对映体富集的胺合成的季铵盐可生成高度对映纯的苄基硫醚和硒醚（94-99％ee），其构型与对映体富集的季铵盐相反。

  DOI：

  10.1039/d0cc05633b

文献信息

• Transition metal-free coupling reactions of benzylic trimethylammonium salts with di(hetero)aryl disulfides and diselenides
  作者：Fuhai Li、Dan Wang、Hongyi Chen、Ze He、Lihong Zhou、Qingle Zeng

  DOI：10.1039/d0cc05633b

  日期：——

  A new protocol was developed to synthesize (enantioenriched) thioethers and selenoethers from (chiral) benzylic trimethylammonium salts and di(hetero)aryl disulfides or diselenides. These syntheses were promoted by the presence of weak base and did not require the use of any transition metal, and resulted in the target products with good to excellent yields (72–94%). Using quaternary ammonium salts

  开发了一种新的方案，以从（手性）苄基三甲基铵盐和二（杂）芳基二硫化物或二硒化物合成（对映体富集）硫醚和硒醚。弱碱的存在促进了这些合成，并且不需要使用任何过渡金属，从而使目标产物的收率达到了良好或优异（72-94％）。使用由对映体富集的胺合成的季铵盐可生成高度对映纯的苄基硫醚和硒醚（94-99％ee），其构型与对映体富集的季铵盐相反。
• GPx-Like Activity of Selenides and Selenoxides: Experimental Evidence for the Involvement of Hydroxy Perhydroxy Selenane as the Active Species
  作者：Vanessa Nascimento、Eduardo E. Alberto、Daniel W. Tondo、Daniel Dambrowski、Michael R. Detty、Faruk Nome、Antonio L. Braga

  DOI：10.1021/ja209570y

  日期：2012.1.11

  The reaction mechanism of the GPx-like oxidation of PhSH with H2O2 catalyzed by selenoxides proceeds via formation of the hydroxy perhydroxy selenane, which is a stronger oxidizing agent than selenoxide. A hydroxy perhydroxy selenane intermediate was observed by electrospray ionization mass spectrometry and Se-77 NMR spectroscopy in reactions of selenoxide 8 with H2O2. The initial velocity of oxidation of PhSH by H2O2 with selenoxide 8 is 4 orders of magnitude higher than that of 8 without peroxide. Selenoxide 8 is not reduced to selenide 6 by PhSH in the presence of H2O2. While electronic substituent effects have minimal impact on the catalytic performance of selenoxides, chelating groups increase the rate of catalysis.